Patent US1494989A successfully refreshed from Google Patents.
US1494989A
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Filling element for gas and liquid contact apparatus
Assignee: BREGEAT Corp
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Filing: 1920-12-17
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Granted: 1924-05-20
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Expires: 1940-12-17
Abstract
No abstract record available.
Inventors
- 👤 Bregeat Jean Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:34
CPC Classifications
F; F28; F28F; F28F25/00; F28F25/02; F28F25/08; B; B01; B01D; B01D53/00; B01D53/14; B01D53/18; B01J; B01J19/00; B01J19/30; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30223; B01J2219/30257; B01J2219/30265; B01J2219/304; B01J2219/30408; G; G01; G01N; G01N30/00; G01N30/02; G01N30/60; G01N30/6052; G01N30/6069; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-05-20 | 1927-11-19 | 1928-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-20 | 1931-11-19 | 1932-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-20 | 1935-11-19 | 1936-05-20 | $7700.00 | Window Closed / Lapsed |